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钢铁工业的CO_2排放量占人类总CO_2排放量的6%,在全球碳排放控制日益严格的大环境下,高碳排放的钢铁工业的生存面临着前所未有的危机,而目前世界最先进的减排方法已达到瓶颈,世界各国都大力开发能够显著降低CO_2排放量的突破性新工艺。阐述了欧洲的超二氧化碳炼钢项目的最新进展和未来研究,其中炉顶煤气循环工艺(TGR-BF)、新的熔融还原工艺(HIsarna)、新型直接还原工艺(ULCORED)和碱性电解还原铁工艺(ULCOWIN,ULCOLYSIS)被认为最有前景,结合碳捕集存储技术,最高可降低80%的CO_2排放量,投资成本和运营成本都比传统高炉工艺的要低。
In the iron and steel industry, CO 2 emissions account for 6% of the total CO 2 emissions of mankind. Under the increasingly stringent global carbon emissions control environment, the survival of the high-carbon steel industry is facing an unprecedented crisis. At present, the world’s most advanced emission reduction The method has reached the bottleneck, and all the countries in the world have devoted themselves to developing breakthrough new technologies that can significantly reduce CO 2 emissions. The latest progress and future research on the European super-carbon dioxide steelmaking project are described, including the TGR-BF, the HIsarna, the ULCORED and the alkaline electrolytic reduction iron ULCOWYSIS (ULCOLYSIS) is considered as the most promising. Combining carbon capture storage technology, CO 2 emissions can be reduced by up to 80%. Both investment cost and operating cost are lower than the traditional blast furnace process.